- She wants to concentrate on a 2012 presidential bid.
- She’s tired of being crucified by the liberal media.
- She hates seeing taxpayer money being wasted investigating her.
- Whatever she’s being investigated for is about to hit the fan.
Mark Halperin has ten possible reasons she might have resigned, most of them focusing on a possible presidential bid.
Brad Friedman thinks some major scandal might be about to break that could involve indictments.
Update: Once again, some things snark themselves.